Question

in fig a -b = 30 degree find a and b​

Answer 1

Please Mark me as brainlist.

Ab is the line

therefore angle a +angle b=180°. ---------(1)

angle a =30+2b. (given)

put the value in (1)

30+2b+b=180

30+3b=180

3b=150

b=50°

therefore a=30+2(30)

a=90°